1. Bilgin, N. Seyrek, T. Shahriar, K. 1988. Golden Horn clean-up contributes valuable data. Tunnels Tunneling, Vol. June, p. 41–44.
2. Applied Rock Cutting Mechanics for Civil and Mining Engineers;Bilgin,1989
3. Bilgin, N. Seyrek, T. Erding, E. Shahriar, K. 1990. Roadheaders glean valuable tips for Istanbul Metro. Tunnels Tunneling, Vol. October, p. 29–32.
4. Bilgin, N. Yazici, S. Eskikaya, S. 1996. A model to predict the performance of roadheaders and impact hammer in tunnel drivages. Eurock 96 ISRM International Syposium, p. 715–720, Rotterdam.
5. Practical Geostatistic;Clark,1979